Reduce PDF file size while keeping text sharp and readable. PDF2Tool offers three quality modes plus an exact-size mode to hit any target KB — perfect for email attachments and uploads.
How to use Compress PDF
Upload your PDF file using drag-and-drop or the file picker.
Pick a compression mode: High Quality, Balanced, Maximum, or Exact Size.
Click Compress and download your smaller PDF, ready to share.
Frequently Asked Questions
How much can I compress a PDF?
Most PDFs shrink by 40–80% depending on content. Image-heavy PDFs compress the most; text-only PDFs compress the least.
Will compression affect text quality?
No. Text stays sharp and selectable. Compression only reduces image resolution down to a safe minimum — your document remains fully readable.
What is Exact Size mode?
Exact Size lets you target a specific file size in KB or MB. The tool runs an iterative search to land within ±5% of your target.
Which mode should I pick?
Use High Quality for printing, Balanced for everyday sharing, Maximum for the smallest file, or Exact Size when you have a strict upload limit.
Are my files private and secure?
Yes. Files are processed in your browser whenever possible, and any file uploaded for server-side conversion is automatically deleted within 30 minutes. We never share, sell, or read your documents.
Is this tool really free?
Yes — 100% free with no signup, no watermarks, and no hidden limits. Use every PDF2Tool feature without an account.